/*
 * Copyright 2023 Red Hat, Inc. and/or its affiliates.
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 *
 *      http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

package org.guvnor.structure.backend;

import java.util.ArrayList;
import java.util.Collection;

import org.apache.commons.text.StringEscapeUtils;
import org.uberfire.security.Contributor;

/**
 * Utility class to provide input escaping or other
 * functionality needed by backend services to sanitize inputs.
 */
public class InputEscapeUtils {

    private InputEscapeUtils() {
        // non-instantiable class
    }

    public static Collection<Contributor> escapeContributorsNames(Collection<Contributor> contributors) {
        Collection<Contributor> escapedContributors = new ArrayList<>();
        contributors.forEach((contributor -> {
            String escapedName = escapeHtmlInput(contributor.getUsername());
            escapedContributors.add(new Contributor(escapedName, contributor.getType()));
        }));
        return escapedContributors;
    }

    public static String escapeHtmlInput(String input) {
        if (input != null) {
            String escapedInput = StringEscapeUtils.escapeHtml4(input);
            escapedInput = escapedInput.replace("'", "");
            return escapedInput;
        } else {
            return null;
        }
    }

}
